PCM output to DAC

From: Andrew Douglas (andy.douglasSPAM_at_gmail.com)
Date: 01/28/05 

Date: 28 Jan 2005 02:29:48 -0800

Hi

I'm currently developing on an Altera Excalibur EPXA1db board, which
has an arm922T. Its got Linux 2.4 running with a basic root
filesystem. I'm looking at cross-compiling an mp3 decoder (madplay) to
run on this
architecture and would appreiciate a bit of advice before starting.

I require the decoded stream to be sent, via general purpose IO
pins, to a customised PCB with a (16 or 24 bit) DAC and audio preamp.

Will I have to write a device driver (/dev/dsp) to enable this or is
there a
simple way to direct the stream to the memory mapped pins?

TIA

Andy Douglas